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Soil salinity and its effect on some physical and chemical properties of Omani lemon
Organization(s):Ain Jaloot basic school
Country:Oman
Student(s):Wasan Bader Al-Barhi
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Teacher:Kaltham Salim Al-Barhi
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Report Type(s):International Virtual Science Symposium Report
Protocols:Conductivity, Dissolved Oxygen, Salinity, Water Temperature, Water Transparency, pH, Soil Characterization, Soil Temperature, Soil pH
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Date Submitted:03/07/2019
The objective of this study is to study the effect of soil salinity differences in some physical and chemical properties of Omani lemons in Suwaiq Willayte, to answer the following questions:
- What is the effect of high soil salinity on the size of Omani lemon?
- How does soil salinity affect the volume of juice in the lemon?
- What is the relationship between soil salinity and the acidity of lemon juice?
Two sites were identified for the study, one with a higher salinity than the other. Four lemon trees were selected from each site and five lemons from each tree were harvested with 20 lemons from each site for measurements. Soil and water characteristics were studied at both sites through the application of the soil and water protocol, respectively.
Results showed that the average weight of lemons and juice and the percentage of juice decreased significantly with the high level of soil salinity. However, the high salinity of the soil increased the acidity of the lemon juice of Oman by a small percentage.
Results also showed that the salinity of the soil significantly affected the size of the lemon and lemon juice of Oman and the percentage of juice where it decreased significantly, while the high salinity of the soil leads to high acidity of the lemon juice.
Based on the results and conclusions, we recommend that farmers and specialists address the problem of soil salinity on the coast of Batinah by working on the establishing a proper drainage network and land tillage. In addition to irrigating the soil with brackish water, surface discharge of irrigating water and to add organic fertilizers.